/*
 * Copyright (C) 2008 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.geofeature;

import java.lang.reflect.Array;
import java.util.ArrayList;

import com.geofeature.models.Action;
import com.geofeature.models.Task;
import com.geofeature.models.Tower;

import android.content.ContentValues;
import android.content.Context;
import android.content.pm.FeatureInfo;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;

/**
 * Simple notes database access helper class. Defines the basic CRUD operations
 * for the notepad example, and gives the ability to list all notes as well as
 * retrieve or modify a specific note.
 * 
 * This has been improved from the first version of this tutorial through the
 * addition of better error handling and also using returning a Cursor instead
 * of using a collection of inner classes (which is less scalable and not
 * recommended).
 */
public class GeoDbAdapter {

    private static final String TAG = "NotesDbAdapter";
    private DatabaseHelper mDbHelper;
    private SQLiteDatabase mDb;
    
    /**
     * Database creation sql statement
     */
    private static final String TASKS_CREATE =
            "create table IF NOT EXISTS tasks (id integer primary key autoincrement, "
                    + "name VARCHAR(255), action_id integer, " +
                    "latitude REAL, longtitude REAL, radius REAL);";
    private static final String TOWERS_CREATE =
        "create table IF NOT EXISTS towers (id integer primary key autoincrement, "
                + "task_id integer, mmc integer, " +
                "mnc integer, lac integer, cellid integer);";
    //private static final String ACTIONS_CREATE =
    //   "create table IF NOT EXISTS actions (id integer primary key autoincrement, "
    //            + "name VARCHAR(255) );";

    private static final String DATABASE_NAME = "data";
    private static final int DATABASE_VERSION = 2;

    private final Context mCtx;

    private static class DatabaseHelper extends SQLiteOpenHelper {

        DatabaseHelper(Context context) {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {

            db.execSQL(TASKS_CREATE);
            db.execSQL(TOWERS_CREATE);
            //db.execSQL(ACTIONS_CREATE);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
                    + newVersion + ", which will destroy all old data");
            //db.execSQL("DROP TABLE IF EXISTS notes");
            //onCreate(db);
        }
    }

    /**
     * Constructor - takes the context to allow the database to be
     * opened/created
     * 
     * @param ctx the Context within which to work
     */
    public GeoDbAdapter(Context ctx) {
        this.mCtx = ctx;
    }

    /**
     * Open the notes database. If it cannot be opened, try to create a new
     * instance of the database. If it cannot be created, throw an exception to
     * signal the failure
     * 
     * @return this (self reference, allowing this to be chained in an
     *         initialization call)
     * @throws SQLException if the database could be neither opened or created
     */
    public GeoDbAdapter open() throws SQLException {
        mDbHelper = new DatabaseHelper(mCtx);
        mDb = mDbHelper.getWritableDatabase();
        return this;
    }
    
    public void close() {
        mDbHelper.close();
    }


    /**
     * Create a new note using the title and body provided. If the note is
     * successfully created return the new rowId for that note, otherwise return
     * a -1 to indicate failure.
     * 
     * @return rowId or -1 if failed
     */
    public long createTask(Task tsk)
    {
        ContentValues initialValues = new ContentValues();
        //initialValues.put('id', tsk.id);
        initialValues.put("name", tsk.name);
        //initialValues.put("action_in_id", tsk.getInAction().id);
        //initialValues.put("action_out_id", tsk.getOutAction().id);
        initialValues.put("latitude", tsk.latitude);
        initialValues.put("longtitude", tsk.longtitude);
        initialValues.put("radius", tsk.radius);

        return mDb.insert(tsk.db_name, null, initialValues);
    }
    public long createTower(Tower twr)
    {
        ContentValues initialValues = new ContentValues();
        //initialValues.put('id', tsk.id);
        initialValues.put("mmc", twr.mmc);
        initialValues.put("mnc", twr.mnc);
        initialValues.put("lac", twr.lac);
        initialValues.put("cellid", twr.cellid);
        initialValues.put("task_id", twr.task_id);

        return mDb.insert(twr.db_name, null, initialValues);
    }

    /**
     * Delete the note with the given rowId
     * 
     * @return true if deleted, false otherwise
     */
    public boolean deleteTask(int task_id) 
    {
    	Task tsk = new Task();
    	Tower twr = new Tower();
    	mDb.delete(twr.db_name, "task_id=`" + task_id+"`", null);
        return mDb.delete(tsk.db_name, "id=`" + task_id+"`", null) > 0;
        
    }

    /**
     * Return a Cursor over the list of all notes in the database
     * 
     * @return Cursor over all notes
     */
    public ArrayList<Task> fetchAllTasks()
    {
    	Task tsk = new Task();
        Cursor cur = mDb.query(tsk.db_name, new String[] {"id", "name"},
        		"1=1", null, null, null, null);
        ArrayList<Task> arr = new ArrayList<Task>();
        cur.moveToFirst();
        do
        {
            // The Cursor is now set to the right position
        	tsk = new Task();
        	tsk.id = cur.getInt(0);
        	tsk.name = cur.getString(cur.getColumnIndex("name"));
        	//tsk.name = cur.getString(1);
            arr.add(tsk);
        }while(cur.moveToNext());
        /*for(int i = 0; i<5; ++i)
        {
        	tsk = new Task();
        	tsk.id = i;
        	tsk.name = "Task #"+i;
        	//tsk.name = cur.getString(1);
            arr.add(tsk);
        }*/
        tsk = new Task();
        tsk.id = 1;
        tsk.name = "Hackaton";
        arr.add(tsk);

        tsk = new Task();
        tsk.id = 2;
        tsk.name = "Work";
        arr.add(tsk);

        tsk = new Task();
        tsk.id = 3;
        tsk.name = "Marshrutka";
        arr.add(tsk);

        tsk = new Task();
        tsk.id = 4;
        tsk.name = "Home";
        arr.add(tsk);

        return arr;
    }

    /**
     * Return a Cursor positioned at the note that matches the given rowId
     * 
     * @return Cursor positioned to matching note, if found
     * @throws SQLException if note could not be found/retrieved
     */
    public Cursor fetchTask(int task_id) throws SQLException
    {
    	Task tsk = new Task();
        Cursor mCursor =

                mDb.query(true, tsk.db_name, tsk.columns, "id=`" + task_id+"`", null,
                        null, null, null, null);
        if (mCursor != null) {
            mCursor.moveToFirst();
        }
        return mCursor;

    }
    public Boolean inTaskTowers(int task_id, GsmCellLocation gsmloc) throws SQLException
    {
    	Tower twr = new Tower();
        Cursor mCursor =

                mDb.query(true, twr.db_name, twr.columns, "task_id=`" + task_id+"` AND " +
                		"lac=`"+gsmloc.getLac()+"` AND cellid=`"+gsmloc.getCid()+"`", null,
                        null, null, null, null);
        return mCursor.getCount() > 0;

    }

    /**
     * Update the note using the details provided. The note to be updated is
     * specified using the rowId, and it is altered to use the title and body
     * values passed in
     * 
     * @param rowId id of note to update
     * @param title value to set note title to
     * @param body value to set note body to
     * @return true if the note was successfully updated, false otherwise
     */
    /*public boolean updateNote(long rowId, String title, String body) {
        ContentValues args = new ContentValues();
        args.put(KEY_TITLE, title);
        args.put(KEY_BODY, body);

        return mDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0;
    }*/
}
